First commit on AI branch : added Bot abstract class.
Added updatePlayer method
Forgot to add bid to current list when made by a bot
Added botToPlayer
Allow only legal bids
Change Card.valeur from Int to Valeur (Roi,As,huit,...)

Card.valeur (as Int) was rename to Card.v and should not be used anymore
(some code still depends on it and needs to be adapted)
Added printEnchere in trait Printer
Added bidding notions to DumBot
Handle player being replaced by a bot when it's his turn to bid/play.
Added documentation
Changed MainController.vainqueur to functional coding style.
Implemented getCard in DumBot.
Merge branch 'AI'